Hi all! So my pop up has the vinyl style exterior “canvas”. I’ve had great success getting it cleaned up but I am struggling with the interior. I tried using just soap and a regular non abrasive sponge and although I am sure I cleaned dirt out of it, it still looks dirty. So next I tried adding a little vinegar to my mixture and still nothing. I can’t scrub it with anything more abrasive because the fabric peels up into balls like on an old sweater. If anyone can share any products and methods that you’ve have success with I would greatly appreciate it!